LevelBuilder.name = \u30ec\u30d9\u30eb

FlattenBuilder.name = \u5e73\u3089\u306b\u3059\u308b
FlattenBuilder.description = \u968e\u5c64\u5185\u306e\u73fe\u5728\u306e\u30d3\u30e5\u30fc\u306e\u307f\u3092\u4fdd\u6301\u3057\u3001\u901a\u5e38\u306e\u8fba\u3067\u306f\u3001\u30e1\u30bf\u8fba\u3092\u5909\u63db\u3059\u308b\u3002\u30b0\u30e9\u30d5\u306f\u3082\u3046\u968e\u5c64\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002
